Godot GPU Particles Oneshot hack for VFX

VFXParticlesGPU.gd

extends GPUParticles3D
##
##	This class should probably be part of the engine featureset. In the meantime, we can have a global class to provide this feature set. Eventually if I have the time I could look at the engine code and see how hard of a feat adding this feature would be.
##
class_name VFXParticlesGPU

func _ready() -> void:
	emitting = true
	one_shot = true

func _process(delta : float) -> void:
	if not emitting:
		queue_free()

Licensing for this is gonna be MIT/CC0 or whatever means that you can use this for literally whatever you want, as long as I'm not liable for your actions with it. That's my general approach with gists.